ichthyornis造句

• :Ichthyornis is one of the closest animals to full bird.
• Also less common was the early toothed bird, " Ichthyornis ".
• "Ichthyornis " has been historically important in shedding light on bird evolution.
• It would have lived alongside the more advanced seabird " Ichthyornis dispar ".
• The first was as a node-based clade uniting " Ichthyornis " with modern birds.
• Many were coastal birds, strikingly resembling modern shorebirds, like " Ichthyornis ", or ducks, like"
• After trying to hunt an Ichthyornis, Pod follows the dwarf dromaeosaurs, believing they can lead him to his own kind.
• Hesperornitheans were originally combined with " Ichthyornis " in the paraphyletic group " Odontornithes " by Othniel Charles Marsh, in 1873.
• One of his most notable finds is the holotype of the first recognized " bird with teeth ", " Ichthyornis ".
• Soon after these discoveries, " Ichthyornis " was recognized for its significance to the theory of evolution recently published by Charles Darwin.
• Marsh saw important evolutionary implications of this find, along with Benjamin Mudge's find of the toothed bird " Ichthyornis ".
• Some studies have found that it was an relatively advanced bird, a member of the Ornithurae, related to birds like " Ichthyornis ".
• One Yale student described various men and women urging Marsh to conceal " Ichthyornis " from the public because it lent too much support to evolutionary theory.
• Large fossilized aquatic birds called " Hesperornis " and " Ichthyornis ", found in western Kansas, indicate that the shallow sea was live with fish.
• Like many other Mesozoic birds such as " Ichthyornis ", " Hesperornis " had teeth as well as a beak, which were used to hold prey.
• It is the oldest-known member of the Ornithurae, the group which includes modern birds ( Neornithes ) and extinct related groups, such as " Ichthyornis " and Hesperornithes.
• The later included the superficially gull-like " Ichthyornis ", the Hesperornithiformes, which became so well adapted to hunting fish in marine environments that they lost the ability to fly and became primarily aquatic.
• The latter part of this section deals with analyzing the skeletal anatomy of the fossil birds " Hesperornis " and " Ichthyornis ", but Heilmann ultimately decides that they are of no importance to his investigations.
• The beak of " Ichthyornis ", like the hesperornithids, was compound and made up of several distinct plates, similar to the beak of an albatross, rather than a single sheet of keratin as in most modern birds.
• Formerly referred to as " Ichthyornis lentus ", " Graculavus lentus ", or " Pedioecetes lentus ", its partial left tarsometatarsus was found in the Late Cretaceous Austin Chalk near Fort McKinney, Texas.